It was before the era of railways hence waterways were critical factor. They determined the population centers access to trade. Examples rivers (New Orleans, Cincinnati), Great Lakes (Chicago, Detroit), canals (Milwaukee) and obviously sea port cities (New York)
<span>A: Agriculture began in the Middle East and then spread to different regions.
Agriculture developed in Turkey and Pakistan.
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The best option from the list would be "<span>a series of failed economic programs," since it was operating under a "command economy"--meaning that government had to "guess" supply and demand. </span>
US supreme court is one, US court of appeals, and US district courts